Oil-burner.



T. TURNBIVJLL, in.

.OIL BURNER. APPLICATION FILED MAR. 12, 1913.

Paaeme Dec. 28, 1915,

INVENTOR WITNESSES THOMAS TURNBULL, JR., 0]? PITTSBURGH, PENNSYLVANIA.

OIL-BURNER.

Specification of Letters Patent.

Patented Dec. 28, 1915.

Application filed March'12, 1913. Serial No..753,80 6.

To all whom it may concern.

Be it k nown that I, THOMAS TURNBULL', Jr., a cltizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Oil-Burners, of which the following is a full, clear, and, exact description, reference being had to the accompanying drawings, forming part of this specification,in which- Figure 1 is a longitudinal section through one form of my improved burner; Fig. 2 is a rear view of the cup; and Fig. 3 is a detail sectional view, similar to the front end of Fig. 1, but showing a cap having a differently shaped delivery opening therethrough.

This invention relates to an improvement in liquid fuel burners, and is designed to provide a cheap and efficient burner having a minimum number of parts, capable of being readily constructed and assembleohand which will require very little machine work in finishing.

A further object is to provide a device from which oil will be discharged in a whirling conical spray, the size and shape of which can be varied by means of readily applied interchangeable caps having diflt'erently shaped delivery openings therethrough.

A still further 0 ject is to provide a burner of this character in which the length can readily be varied to suit various furnaces.

The precise nature of my invention will be best understood-by reference to the accompanying drawings, which will now be described, it being premised, however, that various changes may be made in the details of construction of the several parts without departing from the spirit and scope of my invention, as defined in the appended claim.

In the accompanying drawings, the nu- .meral 2 designates the main casing having anextension member 3 removably connected therewith.

' 4 designates an integral flange on the easing 2, and having openings therethrough for receiving screws for connecting the burner to the furnace. I

5 designates an oil inlet leading into the main body of the casing, the oil is fed under pressure. 7

Theextension 3 is connected to the main body of the casing 2 by a screwthreaded ings 9,

and through which connection, and forms a continuation of said casing. The other end of the extension 3 is exteriorly screw threaded for the reception of a cap 7 on which a cup 8 1S seated and centered. The cup 8 is provided with tangential opentlirough which the oil passes from the casing to the interior of the cup, and which are arranged to cause the oil to gyrate within the cup. The cap 6' is provided with a central opening 10 for delivering the oil from the cup to the furnace. This opening is provided with diverging walls which flare outwardly toward the furnace and also inwardly toward the cup, the inner flare or taper, together with the form of its junction with the other flare determining the angle of the spray.

In Fig. 1, I have shown a cap having van opening in which the flared walls on opposite sides thereof meet, while in Fig. 3, I have shown a cap provided with an opening in which the angular walls on opposite sides thereof do not meet, but are connected by a arallel wall, as indicated at 10.

It will be readily understood by those familiar with the art that if the cap is provided with an opening, such as shown in Fig. 1, the angle of the spray delivered-to the .furnace will be considerably greater than the angle of the spray delivered through an, opening of the form shown in Fig. 3.

I have discovered that by using openings having'parallel walls of different lengths, together with flaring walls of different angles, the angle of the sprayca-n readily be varied.

The advantages of my invention result from the provision of a burner in which the length can readily be the extension member and inserting another one of different length. Further, from the provision of a removable cap having a delivery opening therethrough, and which can readily be removed and replaced by a'similar cap having a differently shaped-opening. Further, from the provision of means between the cap and cup for centering the cup with relation to the opening through the cap I claim:

A liquid fuel burner, comprising a casing having an -oil inlet, a removable cup having a tangentially arranged opening therethrough, a removable capconnected to the 6, having an internal hub or flange varied by removing end of the casing, said cap having an inwardly extending central flange seated in the cup, for centering the cup with relation to the cap, there'being an oil delivery opening through the cap communicating with the interior of the cup, substantially as described.

In testimony whereof, I have hereunto set my hand.

JESSE B. HELLER, H. M. CORWIN. 

